I tried the coin farming. But i give up. U can keep turning pages till ur finger fall off and get about 10 or 20 coins. Minimum amount u ever need to buy aything is set at 4000. The amount of energy spent if converted to $$$ i guess i can buy easily 50 coins. I guess this is webnovel's intuitive way for us to buy coins. I dont mind webnovel finding more way to make money, but this farming mode is by far most killer move 
Right now eveything invluded u can get 4 fast pass. 1 from daily bonus, 1 from multiplier video, 1 each from power and energy stones. Each pass can unlock 1 chapter till now. So that means 4 free chapter so far. In my opinion its better than previous SS model.
But damn that farming 